I have a cold but im also having numbness in my toes in hands and pain in my lower back and legs?

Possible GBS: If you are having neurological symptoms such as numbness or weakness after flu like symptoms or cold, it can be seen in patients who may be developing a rare but quite serious disease such as gullian barre syndrome. If these symptoms are progressing then you need to go to er or check with your doctor asap.

Time course: It depends on the time course. If otis rapidly progressive see a neurologist right away as this may be assign of a disorder known as guillian bare.